Crystal Reports Parameter filtering

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   Hi All,

I am new to Crystal report and am trying to find a solution for the following problem.

I need to create a report where a user will open the crystal report, input his user id and password. Next a screen will display a set of parameters for him to select his criteria. In the parameter screen, there is a drop down listing. The set of data in the drop down listing display a set of data that is filtered based on his user id. 

Now my question is, can crystal report be able to support such requirements? One solution that I have been told is to use .Net.

Any advice is much appreciated